Most of the big computer vendors gimp their bios so that you can't OC. They don't want to be responsible for the support calls that would occur if people were allowed to change certain setting in the bios. I recently bought a cheap HP computer for my son to do his homework on. It's the first computer I purchased in 10 years. I normally build my own. I was surprised at how gimped the bios was. My dell computer at work actually has more options available than the HP does.